Parse RSS Feeds for words that start with a Capital Letter

Thanks. This is a good example. However, here are the rules that are needed to implement in the above script:

Sentence Example:

Officials in Memphis, Tennessee, are bracing for the Mississippi River to crest Tuesday at its highest level in more than 70 years.

1. Considering "Mississippi River" as a single/joint word in the result along with other words.

2. Tennessee, Tuesday be considered separate words

3. A special character marks the end of a word.

4.  "Officials Memphis" be considered a single/joint word (here I am assuming "in" as one of the words in the ignored word list) and the word Memphis is the last word before the special character (which is a comma in this case)

5. CNN Sunday should be considered a joint word so should be stored as "CNN Sunday"

6. Numbers are not a part of the word list.

Can you modify the script to incorporate these rules?

Can you modify the script to incorporate these rules?
No, sorry, I cannot.  They are not really "rules" in the programmatic sense -- they do not describe a generalized, programmable process that identifies a semantic approach to the problem.  Unfortunately computer programs suffer from semantic aphasia.  This is not a question; it is a loosely described requirement for application development and for that you really want to hire a professional developer, one who can devote the time necessary to work with you to bring focus to the details of the requirement.

I can help with this part.
6. Numbers are not a part of the word list.

To implement that change line 30 as shown in the code snippet.

As I said, it is an interesting application with a lot of moving parts.  You might consider full-text searches, or using a Google search appliance where much of this sort of search intelligence is already built in.

. 'A-Z '      // LETTERS AND BLANKS

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Thanks. I understand that words don't behave like we want. I am wondering if there is at least a way to find Words that start with capitalized characters and are adjoining to each other.

Officials in Memphis, Tennessee, are bracing for the Mississippi River to crest Tuesday at its highest level in more than 70 years.

In our case it would be "Mississippi River"

With some additional help I now have the following. I am hoping this code can now be optimized:

<?php // RAY_temp_nainil.php
error_reporting(E_ALL);


// DEMONSTRATE HOW TO FIND CAPITALIZED WORDS AND HOW TO IGNORE CERTAIN WORDS


// THE INPUT DATA
$str = <<<EOD
Officials in Memphis, Tennessee, are bracing for the Mississippi River to crest Tuesday at its highest level in more than 70 years World Wide Web india.
EOD;

// THE IGNORED WORDS
$ign 
= array
( 'Officials'
, 'Foobar'
)
;

// A PLACE TO KEEP THE WORDS WE FOUND
$out = array();

/* 
// REMOVE PUNCTUATION FROM THE INPUT STRING
$rgx 
= '/'         // START REGEX DELIMITER
. '['         // START CHARACTER CLASS
. '^'         // NOT THE FOLLOWING
. 'A-Z 0-9'   // LETTERS NUMBERS AND BLANKS
. ']'         // END CHARACTER CLASS
. '/'         // END REGEX DELIMITER
. 'i'         // CASE-INSENSITIVE
;
$new = preg_replace($rgx, NULL, $str);
*/


/* Remove Unwanted Characters Function  */
function clean_url2($text2)
{
#### FUNCTION BY WWW.WEBUNE.COM AND WALLPAPERAMA.COM

$code_entities_match2 = array( '&quot;' ,'!' ,'@' ,'#' ,'$' ,'%' ,'^' ,'&' ,'*' ,'(' ,')' ,'+' ,'{' ,'}' ,'|' ,':' ,'"' ,'<' ,'>' ,'?' ,'[' ,']' ,'' ,';' ,"'" ,',' ,'.' ,'_' ,'/' ,'*' ,'+' ,'~' ,'`' ,'=' ,' ' ,'---' ,'--','--');
$code_entities_replace2 = array( ' &quot; ' ,' ! ' ,' @ ' ,' # ' ,' $ ' ,' % ' ,' ^ ' ,' & ' ,' * ' ,' ( ' ,' ) ' ,' + ' ,' { ' ,' } ' ,' | ' ,' : ' ,' " ' ,' < ' ,' > ' ,' ? ' ,' [ ' ,' ] ' ,'' ,' ; ' ," ' " ,' , ' ,' . ' ,' _ ' ,' / ' ,' * ' ,' + ' ,' ~ ' ,' ` ' ,' = ' ,' ' ,' --- ' ,' -- ',' -- '); // replace all special character values with nothing
$text2 = str_replace($code_entities_match2, $code_entities_replace2, $text2);
return $text2;
} 

/*
// REMOVE PUNCTUATION FROM THE INPUT STRING
$rgx 
= '/'         // START REGEX DELIMITER
. '['         // START CHARACTER CLASS
. '^'         // NOT THE FOLLOWING
. 'A-Z 0-9'   // LETTERS NUMBERS AND BLANKS
. ']'         // END CHARACTER CLASS
. '/'         // END REGEX DELIMITER
. 'i'         // CASE-INSENSITIVE
;
$new = preg_replace($rgx, NULL, $str);
*/

$new = clean_url2($str);

echo "Special Character Space: ".$new."<br>";

// MAKE AN ARRAY FROM THE STRING WITH ONE WORD IN EACH POSITION
$arr = explode(' ', $new);

$word1 = "";
$word2 = "";
$word3 = "";

// ITERATE OVER THE ARRAY OF WORDS
foreach ($arr as $wrd)
{
    // MAN PAGE http://php.net/manual/en/function.in-array.php
    if (in_array($wrd, $ign)) continue;
    

		// REMOVE PUNCTUATION FROM THE INPUT STRING
		$rgx 
		= '/'         // START REGEX DELIMITER
		. '['         // START CHARACTER CLASS
		. '^'         // NOT THE FOLLOWING
		. 'A-Z '   // LETTERS NUMBERS AND BLANKS
		. ']'         // END CHARACTER CLASS
		. '/'         // END REGEX DELIMITER
		. 'i'         // CASE-INSENSITIVE
		;

		$wrd= preg_replace($rgx, NULL, $wrd);

//		echo $new."<br>";

	if ($wrd !="") { // begin if $wrd != ""

    // MAN PAGE http://php.net/manual/en/function.ucfirst.php
    $ucw = ucfirst($wrd);

    if ($ucw != $wrd) {
    
		$word1 = "";
		$word2 = "";
		$word3 = "";

	continue;
	}

	/*

	Check if 1 is empty
		if 1 is empty, add the word to 1

				Check if 2 is empty
					if 2 is empty, add the word to 2

						Check if 3 is empty
							if 3 is empty, add the word to 3
						else
							1=2
							2=3
							3=NEW

	FINAL 1 & 2 = 1 + 2
	Final 2 & 3 = 2 + 3
	Final 1 & 3	= 1 + 3
	FINAL3 = 1 + 2 + 3

	*/

	if ($word1 == "")
	{
		$word1 = $wrd;
	}
	else // if word1
	{
		if($word2 == "")
		{
			$word2 = $wrd;
		}
		else // if word2
		{
			if($word3 == "")
			{
				$word3 = $wrd;
			}
			else // if word 3
			{
				$word1 = $word2;
				$word2 = $word3;
				$word3 = $wrd;
			}
		}
	}

	$word123	= $word1. ' ' .$word2. ' ' .$word3;
	$word12		= $word1. ' ' .$word2;
	$word13		= $word1. ' ' .$word3;

	echo '<BR>$word123: '.$word123;
	// echo '<BR>$word12: '.$word12;
	// echo '<BR>$word13: '.$word13;
	echo '<hr>';

    // SAVE THE UPPERCASE WORD
//    $out[] = $wrd;
}

} // close end if $wrd != ""

// SHOW THE WORK PRODUCT
echo "<pre>";
echo PHP_EOL . "WE STUDIED $str";
echo PHP_EOL . "WE MADE IT $new";
echo PHP_EOL . "WE IGNORED " . implode(' ', $ign);
echo PHP_EOL . "WE LOCATED " . implode(' ', $out);

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